Event between (609222) 04VV131 and star GA1100:00559742 with event index number of 2789136
Geocentric closest approach at 2028/12/01 01:40:58 UTC
J2000 position of star is 04:09:42.1 +21:28:00
Equinox of date position of star is 04:11:00.6 +21:31:25
Stellar brightness G=14.2,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 8 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=23.2
[RECON map]
TNO is 47.3 AU from the Sun
and 46.3 AU from the Earth.
The TNO is moving 25.9
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 310 seconds.
The 1-sigma cross-track error in the shadow position is
2572 km.
The sky-plane scale is
33573.0 km/arcsec.
The TNO has an absolute magnitude Hv=6.5
Diameter=296.5 km assuming a 5% albedo -- 11.4 sec chord
Diameter=121.0 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 609222, (2028/12/01 01:41UT) Object RA Dec mag sep mel Aldebaran 04:37:35.0 +16:33:55 0.8 7.94 15 44Zet Per 03:55:57.4 +31:58:01 2.8 10.98 9 PPM 093337 04:14:34.5 +22:29:07 6.1 1.20 8 39 Tau 04:07:03.2 +22:05:05 6.7 1.15 7 PPM 093269 04:09:25.2 +21:20:14 9.9 0.51 7 PPM 093293 04:11:35.1 +21:30:38 10.5 0.05 8 609222 04:11:24.5 +21:32:26 14.2 8 Positions are for equinox of date
This table contains the target star visibility for the RECON
network. The observing range has been set to a maximum of
2.9 sigma about the mid-time.
The median site spacing is 47.7 km
RECON observability=0.1 and success probability=11.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 01:43:01 | -15.6 | AT | Up | 18.6 | 78.5 | Really Low | 01:28:01 - 01:58:01 | 1906 |
| Victoria | 01:43:08 | -13.1 | AT | Up | 16.2 | 75.7 | Really Low | 01:28:08 - 01:58:08 | 1875 |
| Peachland | 01:43:04 | -15.7 | AT | Up | 18.8 | 78.6 | Really Low | 01:28:04 - 01:58:04 | 1842 |
| Kelowna | 01:43:04 | -15.9 | AT | Up | 19.0 | 78.9 | Really Low | 01:28:04 - 01:58:04 | 1840 |
| Summerland | 01:43:04 | -15.7 | AT | Up | 18.8 | 78.7 | Really Low | 01:28:04 - 01:58:04 | 1832 |
| Penticton | 01:43:05 | -15.8 | AT | Up | 18.8 | 78.7 | Really Low | 01:28:05 - 01:58:05 | 1825 |
| Oliver | 01:43:06 | -15.7 | AT | Up | 18.8 | 78.6 | Really Low | 01:28:06 - 01:58:06 | 1806 |
| Anarchist Mountain Observatory | 01:43:06 | -15.8 | AT | Up | 18.9 | 78.7 | Really Low | 01:28:06 - 01:58:06 | 1792 |
| Tonasket | 01:43:08 | -15.7 | AT | Up | 18.8 | 78.5 | Really Low | 01:28:08 - 01:58:08 | 1777 |
| Okanogan | 01:43:09 | -15.5 | AT | Up | 18.6 | 78.3 | Really Low | 01:28:09 - 01:58:09 | 1762 |
| Brewster | 01:43:11 | -15.3 | AT | Up | 18.4 | 78.1 | Really Low | 01:28:11 - 01:58:11 | 1753 |
| Manson/Chelan | 01:43:11 | -15.0 | AT | Up | 18.1 | 77.8 | Really Low | 01:28:11 - 01:58:11 | 1751 |
| Wenatchee | 01:43:13 | -14.7 | AT | Up | 17.9 | 77.5 | Really Low | 01:28:13 - 01:58:13 | 1729 |
| Ellensburg | 01:43:14 | -14.5 | AT | Up | 17.7 | 77.2 | Really Low | 01:28:14 - 01:58:14 | 1712 |
| Yakima | 01:43:15 | -14.4 | AT | Up | 17.6 | 77.1 | Really Low | 01:28:15 - 01:58:15 | 1690 |
| Toppenish/White Swan | 01:43:16 | -14.4 | AT | Up | 17.7 | 77.1 | Really Low | 01:28:16 - 01:58:16 | 1672 |
| Goldendale | 01:43:18 | -14.0 | AT | Up | 17.3 | 76.7 | Really Low | 01:28:18 - 01:58:18 | 1652 |
| The Dalles | 01:43:19 | -13.7 | AT | Up | 17.0 | 76.4 | Really Low | 01:28:19 - 01:58:19 | 1649 |
| Maupin | 01:43:20 | -13.6 | AT | Up | 16.9 | 76.3 | Really Low | 01:28:20 - 01:58:20 | 1622 |
| PNWRO | 01:43:18 | -15.3 | AT | Up | 18.6 | 78.0 | Really Low | 01:28:18 - 01:58:18 | 1608 |
| Sleaford | 01:42:51 | -24.7 | Dark | Up | 27.6 | 90.0 | Low | 01:27:51 - 01:57:51 | 1596 |
| Sisters | 01:43:23 | -13.0 | AT | Up | 16.4 | 75.8 | Really Low | 01:28:23 - 01:58:23 | 1584 |
| Bend | 01:43:25 | -13.1 | AT | Up | 16.5 | 75.9 | Really Low | 01:28:25 - 01:58:25 | 1562 |
| Oregon Observatory | 01:43:25 | -13.0 | AT | Up | 16.4 | 75.7 | Really Low | 01:28:25 - 01:58:25 | 1555 |
| North Lake | 01:43:27 | -13.2 | AT | Up | 16.6 | 75.9 | Really Low | 01:28:27 - 01:58:27 | 1500 |
| Chiloquin | 01:43:29 | -12.3 | AT | Up | 15.8 | 75.1 | Really Low | 01:28:29 - 01:58:29 | 1486 |
| Klamath Falls | 01:43:30 | -12.2 | AT | Up | 15.7 | 75.1 | Really Low | 01:28:30 - 01:58:30 | 1462 |
| Lakeview | 01:43:31 | -13.2 | AT | Up | 16.8 | 75.9 | Really Low | 01:28:31 - 01:58:31 | 1416 |
| Fall River/Burney | 01:43:34 | -12.2 | AT | Up | 15.7 | 75.0 | Really Low | 01:28:34 - 01:58:34 | 1375 |
| Cedarville | 01:43:33 | -13.2 | AT | Up | 16.7 | 75.9 | Really Low | 01:28:33 - 01:58:33 | 1369 |
| Susanville | 01:43:36 | -12.5 | AT | Up | 16.1 | 75.3 | Really Low | 01:28:36 - 01:58:36 | 1310 |
| Greenville | 01:43:38 | -12.2 | AT | Up | 15.8 | 75.0 | Really Low | 01:28:38 - 01:58:38 | 1301 |
| Gimple | 01:43:37 | -12.3 | AT | Up | 15.9 | 75.1 | Really Low | 01:28:37 - 01:58:37 | 1298 |
| Quincy | 01:43:38 | -12.1 | AT | Up | 15.8 | 75.0 | Really Low | 01:28:38 - 01:58:38 | 1287 |
| Portola | 01:43:38 | -12.5 | AT | Up | 16.1 | 75.2 | Really Low | 01:28:38 - 01:58:38 | 1264 |
| Reno | 01:43:40 | -12.8 | AT | Up | 16.5 | 75.5 | Really Low | 01:28:40 - 01:58:40 | 1225 |
| Carson City | 01:43:41 | -12.8 | AT | Up | 16.5 | 75.4 | Really Low | 01:28:41 - 01:58:41 | 1200 |
| Gardnerville | 01:43:41 | -12.7 | AT | Up | 16.4 | 75.4 | Really Low | 01:28:41 - 01:58:41 | 1182 |
| Yerington | 01:43:41 | -13.2 | AT | Up | 16.9 | 75.7 | Really Low | 01:28:41 - 01:58:41 | 1166 |
| Hawthorne | 01:43:43 | -13.4 | AT | Up | 17.2 | 75.9 | Really Low | 01:28:43 - 01:58:43 | 1117 |
| Lee Vining | 01:43:45 | -12.9 | AT | Up | 16.7 | 75.5 | Really Low | 01:28:45 - 01:58:45 | 1094 |
| Tonopah | 01:43:44 | -14.4 | AT | Up | 18.2 | 76.6 | Really Low | 01:28:44 - 01:58:44 | 1037 |
| Bishop | 01:43:46 | -13.3 | AT | Up | 17.1 | 75.7 | Really Low | 01:28:46 - 01:58:46 | 1027 |
| Beatty | 01:43:48 | -14.4 | AT | Up | 18.2 | 76.5 | Really Low | 01:28:48 - 01:58:48 | 938 |
| Indian Springs | 01:43:49 | -15.1 | AT | Up | 19.0 | 76.9 | Really Low | 01:28:49 - 01:58:49 | 878 |
| Henderson | 01:43:50 | -15.5 | AT | Up | 19.4 | 77.1 | Really Low | 01:28:50 - 01:58:50 | 814 |
| Wildwood | 01:43:56 | -12.1 | AT | Up | 16.1 | 74.7 | Really Low | 01:28:56 - 01:58:56 | 793 |
| Dunrhomin | 01:43:31 | -23.9 | Dark | Up | 27.7 | 84.4 | Low | 01:28:31 - 01:58:31 | 791 |
| CU-SBO | 01:43:32 | -23.8 | Dark | Up | 27.6 | 84.2 | Low | 01:28:32 - 01:58:32 | 776 |
| Laughlin/Bullhead City | 01:43:52 | -15.6 | AT | Up | 19.6 | 77.0 | Really Low | 01:28:52 - 01:58:52 | 734 |
| Patrick | 01:43:51 | -16.2 | AT | Up | 20.2 | 77.5 | Low | 01:28:51 - 01:58:51 | 728 |
| Kingman/Dolan Springs | 01:43:52 | -16.0 | AT | Up | 20.0 | 77.3 | Low | 01:28:52 - 01:58:52 | 718 |
| Mohave Valley | 01:43:53 | -15.5 | AT | Up | 19.5 | 76.9 | Really Low | 01:28:53 - 01:58:53 | 713 |
| Idyllwild | 01:43:57 | -13.5 | AT | Up | 17.6 | 75.5 | Really Low | 01:28:57 - 01:58:57 | 700 |
| Lake Havasu City | 01:43:54 | -15.6 | AT | Up | 19.6 | 76.9 | Really Low | 01:28:54 - 01:58:54 | 673 |
| Parker | 01:43:55 | -15.6 | AT | Up | 19.6 | 76.8 | Really Low | 01:28:55 - 01:58:55 | 645 |
| Calipatria | 01:43:59 | -14.3 | AT | Up | 18.4 | 75.9 | Really Low | 01:28:59 - 01:58:59 | 610 |
| Yuma | 01:43:59 | -14.9 | AT | Up | 19.0 | 76.2 | Really Low | 01:28:59 - 01:58:59 | 544 |
| George/Scottsdale | 01:43:55 | -17.4 | AT | Up | 21.5 | 77.9 | Low | 01:28:55 - 01:58:55 | 525 |
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 609222, (2028/12/01 01:41UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 7.94 15 44Zet Per 03:54:07.9 +31:53:01 2.8 10.98 9 PPM 093337 04:12:51.3 +22:24:47 6.1 1.20 8 39 Tau 04:05:20.5 +22:00:29 6.7 1.15 7 PPM 093269 04:07:43.0 +21:15:43 9.9 0.51 7 PPM 093293 04:09:52.7 +21:26:12 10.5 0.05 8 609222 04:09:42.1 +21:28:00 14.2 8 Positions are for J2000
Event circumstances last updated at 2022/03/05 01:04:28 UT
Marc W. Buie, Southwest Research Institute